Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's arrival comes with a decrease in the average high-temperature, moving from 28.4°C (83.1°F) in August to a still warm 23.4°C (74.1°F). The average nighttime temperature lowers to a fresh 12.7°C (54.9°F) throughout September.Humidity
The average relative humidity in September is 69%.Rainfall
In Rivalba, in September, it is raining for 13.6 days, with typically 46mm (1.81") of accumulated precipitation. Throughout the year, in Rivalba, there are 162.8 rainfall days, and 795mm (31.3") of precipitation is accumulated.Snowfall
April through September are months without snowfall.Daylight
The average length of the day in September in Rivalba is 12h and 32min.On the first day of September, sunrise is at 06:50 and sunset at 20:05. On the last day of the month, sunrise is at 07:25 and sunset at 19:10 CEST.
Sunshine
In Rivalba, the average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September in Rivalba is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Warding off sunburn is urged. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What are September temperatures in Rivalba?
What is the average humidity in September in Rivalba?
How much does it rain in Rivalba in September?
When it does not snow in Rivalba?
Does it snow in Rivalba in September?
How many hours of daylight does Rivalba have in September?
When are sunrise and sunset in September in Rivalba?
How many hours of sunshine does Rivalba have in September?
How high is the UV index in September in Rivalba?
Average temperature in September
Rivalba, Italy
- Average high temperature in September: 23.4°C
The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is July (16.8°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in September
Rivalba, Italy
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is April (1014.4mbar).
Average wind speed in September
Rivalba, Italy
- Average wind speed in September: 5.2km/h
The windiest months (with the highest average wind speed) are March, April, May and July (5.8km/h).
The calmest months (with the lowest average wind speed) are January and November (4.8km/h).
Average humidity in September
Rivalba, Italy
- Average humidity in September: 69%
The month with the highest relative humidity is November (77%).
The months with the lowest relative humidity are July and August (65%).
Average rainfall in September
Rivalba, Italy
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is November (118mm).
The driest month (with the least rainfall) is January (16mm).
Average rainfall days in September
Rivalba, Italy
- Average rainfall days in September: 13.6 days
The months with the highest number of rainy days are June and July (20.1 days).
The month with the least rainy days is January (6 days).
Average snowfall in September
Rivalba, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (119mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Rivalba, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rivalba, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in September
Rivalba, Italy
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is June (4.5 days).
Average UV index in September
Rivalba, Italy
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Rivalba, Italy
- Average cloud cover in September: 22
The month with the most cloud cover is November (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility in September
Rivalba, Italy
- Average visibility in September: 9km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March, April, May, August, September, October, November and December (9km).
Rivalba, Italy
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